Communication Protocols Support in PSoC® 3, PSoC 4, and PSoC 5LP Bootloader Component - KBA84744

Version 2

    Version: *D

     

    Translation - Japanese: PSoC®3、PSoC 4、およびPSoC 5LPブートローダーコンポーネントでの通信プロトコルのサポート - KBA84744 - Community Translated (JA)

     

    Question:

    What are the communication protocols supported by PSoC 3, PSoC 4, and PSoC 5LP Bootloader Component? What are the different bootloader hosts that can be used with PSoC 3, PSoC 4, and PSoC 5LP?

     

    Answer:

    The various communication protocols supported by the Bootloader Component (v1.50 in PSoC Creator4.0) are :

                                                                                                                                                                                                                                                                                                          

      
    Communication
         Protocol
     
      
    UDB or SCB
         implementation
     
      
    App Note
     
      
    Device
     
      
    Bootloader Host Project provided
         with App Note
     
      
    PSoC 3
     
      
    PSoC 4
     
      
    PSoC 5LP
     
      
    PC
         Application
     
      
    PSoC 3
         acting as
         a Host
     
      
    PSoC 4
         acting as
         a Host
     
      
    PSoC
         5LP
         acting as
         a Host
     
      
    I2C
     
      
    SCB
     
           
    N/A
     
      
    Yes
     
      
    N/A
     
      
    Yes
     
      
    N/A
     
      
    Yes
     
      
    N/A
     
      
    I2C
     
      
    UDB
     
           
    Yes
     
      
    N/A
     
      
    Yes
     
      
    Yes
     
      
    Yes1
     
      
    No
     
      
    Yes
     
      
    SPI
     
      
    UDB
     
           
    Yes
     
      
    Yes3
     
      
    Yes
     
      
    No
     
      
    No1
     
      
    No
     
      
    Yes
     
      
    UART
     
      
    UDB
     
           
    Yes
     
      
    Yes
     
      
    Yes
     
      
    Yes
     
      
    No1
     
      
    No
     
      
    Yes
     
      
    USB(HID)
     
      
    Fixed function
     
           
    Yes
     
      
    Yes4
     
      
    Yes
     
      
    Yes
     
      
    N/A
     
      
    N/A
     
      
    N/A
     

     

    For information on support for custom communication protocols, see the “Adding Bootloader Support” topic in the Component Author Guide (PSoC Creator > Help > Documentation > Component Author Guide) .

     

    Note: PSoC Creator supports bootloading through SCB-based UART and SPI Components in PSoC 4.

     

    1 PSoC 3 can be used as a bootloader host with modifications in the PSoC 5LP-based bootloader host project. However, because PSoC 3 has much lower flash size, a bootloadable project that works with PSoC 5LP may not work with PSoC 3 unless the flash space required by the bootloadable project can fit into PSoC 3’s flash. Therefore, it is recommended to use PSoC 5LP as the Bootloader host instead of PSoC 3.

     

    2 The Application note also explains how to create a Windows-based bootloader host.

     

    3 Application note is not available.

     

    4 Only applicable for PSoC 4200L devices. Application note is not available.